Snowplow



April 15 1924.

J. BREWCZYNSKI SNOWPLQW Filed March l5. 1923 2 Sheets-Sheet 2.

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JOHN BBEWCZYESKI, 03T EELLEWOOD, ILLL'INOS, ASSIGNOR OF ONE-HOURTH T0JOHN KMIEG, OIF BELLEWOOD, ELLNOIS. j

SNOWPLOW.

Application :tiled March 15, 1923. Serial No. 625,270.

To all whom t may concern:

Be it known that l, JOHN Bnnwczrnsxr, a citizen of Poland, residingBellewood, in the county of Cook and State of illinois, have inventedcertain new and useful Improvements in Snowplows, of which the followingis a specification.

rlhis invention relates to certain new and useful improvements in snow'plows and has particular reference to that type of plow especiallydesigned for clearing the snow from street and railway tracks, the snowlying on the track being centrally divided and thrown to opposite sidesthereof The primary object of the invention resides in the provision ofa snow plow wherein a double plow share is vertically adjustable upon asupporting carriage with parn allel horizontal screw shafts freelyextending through each side of the plow share permitting adjustmentofthe latter, the screw shaft operating to discharge the divided snowlaterally of the track.

With the above and other objects in view as the nature of the inventionis better understood, the same consists of the novel form, combinationand arrangement of parts hereinafter' morefully described, shown in theaccompanying drawings and claimed.

In the drawings, wherein like reference characters designatecorresponding parts throughout the several views,

Figure 1 is a top plan view of a snow plow constructed in accordancewith the present invention, the floor board thereof being partiallybroken away and the plow illustrated as mounted upon a track,

Figure 2 is a vertical longitudinal sectional view taken on line Il-llof Fig. 1 showing the guiding devices for the screw shaft and theadjusting screw for regulating the height of the plow share,

Figure 3 is a front elevational view,

Figure l is a detail sectional view taken on line lV-lV of lig.r 1showing the screw adjustment for the plow share,

Figure 5 is a fragmentary detailfview of a portion of the main axleofthe snow plow carriage showing a chain drive that may be connected toa suitable source of power,

Figure 6 is a fragmentary detail view of a modified form of heightadjusting mecha'- nism for the plow shares,and

Figure 7 is a detail sectional view taken on line VH--Vll of Fig. 4f.

Referring more in detail to the accompanying drawings, there isillustrated a snow plow in the form of a wheeled carriage riding uponthe track rails 1, it beingintended that the carriage be forwardlypositioned relative to a power device, such as a car or train to beoperated thereby, or hav-v ing driving device directly connected theretofor independent operation. The plow carriage embodies a pair of crossbars 2 carrying perpendicular end bearings 3, the rear ends of thebearings 3 rotatably supporting the axle l carrying track wheels 5 uponthe ends thereof, the forward ends of the bearings 8 carryingvstubshafts 6 on which track wheels 7 are journaled, brace bars 8 extendingbetween the stub axles 6 and adjacent cross bar 2. The cross bars 2support a platform 9, and if desired, when it is intended that the snowplowbe self-propelled, a motor mechanism mounted on the platform 9 mayhave a chain connection 10 with a sprocketwheel 11 secured to the axle 4as shown in Fig. 5, the track wheels 6 being fixed to the ends ofsaidaxle.

The platform 9 carries a forwardly projecting and centrally positionedtapering portion 12 that is disposed between and rearwardly of the sidewalls 13 of the plow,

the forward ends of the side boards abutting as at 11i while the rearends are transversely disposed as at 15 and extend beyond the trackrails 1 as shown in Figs. 1 and 3 with the lower edges thereof cut awayas at 16 to provide clearances for the rails. Bearing balls 17 arecarried by the tapering portion 12 of the platform and with which theside boards 13 of the plow engage to provide an anti-friction bearingsurface.

A pair of screw shafts is associated with the carriage and plow fordirecting the snow divided by the plow laterally of the tracks, a shaft18 being journaled in depending bearings 19 carried by the cross bars 2adj acent each end thereof, the rear end of each shaft carrying a fixedbevel pinion 20 meshing with a bevel gear 21 fixed on the axle 4. Theforward end of each shaft 18 projects through a vertical slotted opening22 formed in the transverse portion 15 of the adjacent plow section 18and carries upon its forwardly projecting end a spiral screw blade 23adapted for gathering the divided snow and displacing the same laterallyof the tracks.

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' the same, each transverse wall of the plow sections 13 carryingrearwardly directed angle brackets 24 through which a verticallydisposed screw shaft 25 is threaded, the lower end of the shaft havingVa ball and socket mounting 26 upon the platform 9. A crank handle 27applied to the wrench end 28 of the screw shaft 25 and rotated effectsthe raising and lowering of the plow.

If desired, the upper ends of the screw shafts 25 may be provided withsprocket wheels 29, as shown in Fig. 6 over which aV sprocket chain 30passes, while a crank handie 27*t applied to one of the screw shaftseffects simultaneous operation thereof to raise and lower the plow.

Fromthe above detail description of the device, it is believed that theconstruction and operation thereof will at once be apparent, it beingnoted that the carriage may be positioned forwardly of a power devicesuch as a street car or railroad engine and forwardly propelled thereby,or the same may embody its own propulsion mechanism that is connected tothe driving axle 4f as indicated in Fig. 5. The jointed ends 14C of theplow sections 13 divide the snow that is gathered by the spiral blades23 upon the forward ends of the driven shafts 18 to direct the snowlaterally of the tracks. The height of the plow relative to the platform9 and track rails 1 is readily controlled by the screw shafts 25 asabove described.

While there are herein shown and described the preferred embodiments ofthe present invention, it is nevertheless to be understood that minorchanges may be made therein without departing from the spirit and scopeVof the invention as claimed.

What is claimed as new is 1. In a device of the class described, awheeled carriage, embodying cross bars having perpendicular endbearings, transverse shafts journaled in said bearings, wheels on saidsha ts, and a platform on said cross bars, a vertically adjustable snowplow mounted at the forward end of said carriage., said plow embodying apair of side boards meeting at their forward ends centrally of thecarriage with the rear ends-of the boards curved outwardly and extendingtransversely of the forward end of the carriage,

an anti-friction wiping connect-ion between the side boards and theplatform, and a screw shaft rotatably extending through each lateralportion of the plow.

2. In a device of the class described, a

. wheeled carriage, embodying cross bars having perpendicular endbearings, transverse shafts journaled in said bearings, wheels on saidshafts, vand a platform on said cross bars, a vertically adjustable snowplow mounted at the forward end of said carriage, said plow embodying apair of side boards meeting at their forward ends centrally of thecarriage with the rear ends of the boards curved outwardly and extendingtransversely of the forward end. of the carriage, an antifriction wipingconnection between the side boards and the platform, a screw shaftrotatably extending through each lateral portion of the plow, andcooperating driving means for the shafts carried by the carriage andshafts.

3.V In a device of the class described, a wheeled carriage, embodyingcross bars having perpendicular end bearings, transverse shaftsjournaled in said bearings, wheels on said shafts, and a platform onsaid cross bars, a vertically adjustable snow Vplow mounted at theforward end of said carriage, said plow embodying a pair of side boardsmeeting at their forward ends centrally of the carriage with the rearends'of the boards curved outwardly and extending transversely of theforward end of the car- Y riage, an anti-friction wiping connectionbetween the side boards screw shaft rotatably extending through eachlateral portion of the plow, a drive axle on the carriage, and gearconnections between the axle and shafts.

4. In a device of the class described, a wheeled carriage, embodyingcross bars having perpendicular end bearings, transverse shaftsjournaled in said bearings, wheels on said shafts, and a platform onsaid cross bars, a vertically adjustable snow plow mounted at theforward end of said carriage, said plow embodying` a pair of side boardsmeeting at their forwardends centrally of the carriage with the rearends of the curved outwardly and extending transversely of the forwardend of the carriage, an anti-friction wiping connection between the sideboards and the platform, a screw shaft rotatably extending through eachlateral portion of the plow, the adjustable mounting for the plowincluding'brackets carried by the plow and screw shafts threaded throughthe brackets and swivelled at their lower ends on the carriage.

5. In ay device of the class described, a wheeled carriage, embodyingcross bars having perpendicular end bearings, transverse shaftsjournaled in said bearings, wheels on said shafts, and a platform onsaid cross bars, a vertically adjustable snow v plow mounted at theforward end of said carriage, said plow embodying a pair of side boardsmeeting at their forward ends centrally of the carriage with the rearends of the boards curved outwardly and extending transversely of theforward end of the carriage, an anti-friction'wiping connection betweenthe side boards and the platform, a. screw shaft rotatably extendingthrough and the platform, a

boards lll) each lateral portion o the plow, cooperating driving meansfor the shafts Carried by the carriage and shafts, the adjustablemounting `for the plow ineluding brackets carried by the plow and screwshafts threaded through the brackets and swivelled at their lower endson the carriage.

6. In a device of the class described, a wheeled carriage, embodyingcross bars having perpendicular end bearings, transverse shaftsjournalod in said bearings, wheels on said shafts, and a platform onsaid cross bars, a vertically adjustable snow plow mounted at theforward end of said carriage, said plow embodying a pair of side boardsmeeting at their forward ends eentrally of the carriage with the rearends of the boards curved outwardly and extending transversely of theforward end of the Carriage, an anti-friction wiping connection betweenthe side boards and the platform, a screw shaft rotatably extendingthrough each lateral portion of the plow, a drive axle on the carriage,gear connections between tlie axle and shafts, the adjustable mountingfor the plow including brackets carried by the plow and screw shaftsthreaded through the brackets and swivelled at their lower ends on thecarriage.

In testimony whereof` I aiiix my signature.

JOHN BREVCZYNSKI.

